Do you need grip socks for Solidcore? What to know before you book

Yes—every Solidcore studio requires grip socks with rubber or silicone dots on the sole, full stop. Skip them and you're stuck buying a pair at the front desk before class or borrowing a loaner set that's been through fifty other feet that week.

Why this matters

Solidcore classes run on the SPX machine, a lever-resistance platform where you're standing, lunging, and balancing directly on a moving metal surface for most of the 50-minute session. Cotton socks or bare feet slide the second the lever shifts weight, and that's not a minor annoyance — it's how ankles roll and reps get cut short.

Studios enforce grip socks because the machine's design leaves zero margin for slipping feet. It's the same logic behind the best Solidcore socks guide: the grip has to sit under the whole foot, not just the toes, because you're pivoting your weight constantly through the class.

Before you start

• Check your specific studio's policy — nearly every Solidcore location requires grip socks, but confirm with your booking confirmation email or the front desk before your first class so there's no surprise.
• Have a backup plan for day one — most studios sell or loan grip socks on-site if you forget, but availability in your size isn't guaranteed, especially at peak evening slots.
• The gotcha: toe socks and yoga socks with grip only on the ball of the foot don't cut it on the SPX lever — you need full-sole coverage, or your heel slides during the pivot moves.

Confirm your studio's sock policy before you book

1. Pull up your class confirmation email or the studio's FAQ page and look for a line about required footwear — Solidcore studios almost universally list grip socks as mandatory.
2. Call or message the front desk if the policy isn't spelled out, and ask specifically whether they sell or rent socks on-site.
3. Note your foot size and preferred length before you go so you're not guessing at the counter.

Expected result: you know before you walk in whether you're bringing your own pair or buying at the studio.

Pick the right grip sock length for Solidcore's SPX machine

1. Go ankle-length if you want the least amount of fabric and prefer your ankle bones visible — this works fine on the SPX pedals as long as the sole grip runs full-length.
2. Go midi or crew length if you like extra coverage up the shin, which some people prefer for comfort against the machine's carriage edges during lunges.
3. Skip anything with grip only at the toe or heel — Solidcore's lever work shifts your weight across the entire foot, so partial grip patterns leave gaps exactly where you need traction.

Expected result: a sock that stays put through pivots, lunges, and planks without bunching at the arch.

Pack the rest of your Solidcore kit

1. Bring a fitted top — loose shirts catch on the machine's springs and handles during the lever moves.
2. Wear leggings or fitted shorts that won't slide up during lunges; loose fabric bunches and distracts mid-set.
3. Bring water and a small towel — Solidcore classes run hot and the 50-minute format doesn't leave much of a break to rehydrate.

Expected result: you show up ready to move instead of adjusting your outfit through the warm-up.

Grip socks that work on the SPX machine

The Classic Ankle Grip Socks - Grey

Low-profile ankle sock with cushioned heel and full grip sole.

16.00

The Classic Midi Grip Socks - Yellow

Medium-length tube sock that works under shorts, capris, or leggings.

20.00

The Lemon Grip Socks

Classic tube grip sock with a lemon print and matching yellow grips.

24.00

Same rule for Lagree, reformer Pilates, and barre

Solidcore isn't the only format that locks the door on bare or cotton feet. Lagree and reformer Pilates studios use a similar carriage-and-spring setup where grip socks prevent your foot from sliding off the platform mid-rep, and the reformer Pilates sock guide covers what to look for if you're bouncing between studio types. Pure Barre and CorePower run the same no-exceptions policy, just on a barre or mat instead of a machine — one pair of full-sole grip socks covers all of it.

Troubleshooting

Socks slide on the lever pedal. The grip pattern is probably concentrated at the toe or heel instead of running the full sole — swap to a style with full-sole silicone dots.

Socks bunch at the arch mid-class. This usually means the sock is a size too big; grip socks should sit snug, not loose, since a loose sock shifts inside your shoe-free foot placement.

You're comparing grip socks to reformer loops. Some studios use loop-style foot straps instead of a flat platform — the grip socks vs reformer loops breakdown explains when each works better.

Grip feels worn down after repeated washes. Turn socks inside out before washing and skip the dryer's high heat, which breaks down silicone grip faster than air drying.

Forgot socks on class day. Most Solidcore studios sell or loan a pair at the desk — but arrive 10 minutes early since sizes run out during busy evening classes.

What to pack once grip socks are sorted

Once the sock question is settled, the rest of your Solidcore kit is straightforward: fitted layers, water, a towel, and a pair of grip socks you actually like wearing outside the studio too. Grip socks with fun prints hold up the same as plain ones — the silicone dots do the work regardless of what's printed on top.

FAQ

One last thing

The studios that loan socks at the desk almost never restock mid-week — if your regular class time is a Tuesday evening, that's exactly when the loaner bin runs empty first. Owning one pair solves that permanently, and it travels straight from the Solidcore machine to Lagree, barre, or reformer Pilates without a second purchase.

Related guides

• Best crew grip socks in 2026
• Best grippy socks in 2026